2 after installation manual, feel relaxed, flexible, non-blocking

3 Installation are not allowed to directly tap the guide wheel plane to prevent damage to the accuracy and face deformation.

V-shaped groove: radial runout≤0.004mm; axial runout≤0.004mm; bottom beating≤0.004mm

3.Performance

First, to achieve a reliable seal to ensure that the process to prevent the flow of fluid into the work of the internal bearings, the lubrication of bearings in good condition and the life;

the second is to guide bearings and fused rigid Greatly enhanced and improved the operation generated in the axial and radial side before beating the negative phenomena.